gnuplot中的粗体增强文本 [英] bold enhanced text in gnuplot

问题描述

更新：此问题已在更高版本的gnuplot（> 5.0）中得到解决；见@andyras的答案。

UPDATE: this issue has been resolved in newer versions (>5.0) of gnuplot; see @andyras' answer.

我很难让gnuplot在非postscript中创建带有粗体和增强文本的标签终端。以下脚本

I am having difficulty getting gnuplot to create labels with bold and enhanced text in non-postscript terminals. The following script

#!/usr/bin/env gnuplot

reset

set terminal pdfcairo enhanced color lw 3 size 3,2 font 'Arial-Bold'
set output 'output.pdf'

set tics scale 0

plot -x title 'normal text', \
-2*x t 'enhanced_{text}', \
-3*x t '{/Arial-Bold attempt to specify_{font}}'

set terminal pngcairo enhanced color lw 3 size 400,300 font 'Arial-Bold'
set output 'output.png'
replot

set terminal postscript enhanced color lw 3 size 6,4 font 'Arial-Bold'
set output 'output.eps'
replot

reset

产生以下eps（使用转换为png转换output.eps-旋转90 outputeps.png ）：

Produces the following eps (converted to png with convert output.eps -rotate 90 outputeps.png):

这很好。但是，当我使用pdf或png终端时，结果如下所示：

which is fine. However, when I use the pdf or png terminals the result looks like this:

请注意，虽然所有标签文本均应为粗体，但只有没有任何增强文本的标签都为粗体。另外，当我尝试手动指定字体（最后一行标题）时，字体是不同的（还原为默认值吗？）。

Note that while all the label text should be bold, only the label without any enhanced text is bold. In addition, when I try to manually specify the font (last line title) the font is different (reverts to the default?).

这种行为是我应该期待的吗？不使用postscript终端？还有另一种指定字体的方法（即，命名方式是否不同于Postscript）？

Is this behavior I should expect when not using the postscript terminal? Is there another way to specify fonts (i.e. is the naming scheme different outside of postscript)?

推荐答案

自版本5.0起，gnuplot具有处理此问题的新语法：

Since version 5.0, gnuplot has a new syntax to handle this issue:

 "normal text {/Times:Bold boldface-newfont} {/:Italic slanted-default-font } back to normal text"]

这些括号也可以嵌套。

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